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B-type natriuretic peptide-directed ultrafiltration improves care in acutely hospitalized dialysis patients.
MedLine Citation:
PMID:  19522962     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
In an observational study in 19 consecutive acutely hospitalized dialysis patients, ultrafiltration (UF) volume was determined by B-type natriuretic peptide (BNP) levels. Patients were ultrafiltrated daily until they achieved a target BNP level <500 pg/mL. The UF volumes ranged from 2 to 5 L per session. All patients were male veterans aged 68+/-11 years (mean +/- SD), 74% were diabetic, 47% were African Americans, 58% underwent prevalent dialysis, and 53% had an arteriovenous fistula. Left ventricular ejection fraction on 2-dimensional echocardiography was 43.8%+/-27.9% (n=16). The admission BNP was 2412+/-1479 pg/mL (range, 561-5000 pg/mL) and BNP at hospital discharge was 1245+/-1173 pg/mL (range, 345-5000 pg/mL) (nonparametric Wilcoxon P=.0013). Admission weight was 88.9+/-27.9 kg and at discharge was 78.1+/-25.6 kg (P=.0002). The number of antihypertensive medications taken was 3.8+/-2.0 at admission and 2.3+/-1.7 at discharge (P=.0005). The number of patients with >2 blood pressure medications decreased from 14 to 6 (Fisher exact test, P=.02). The systolic/diastolic/mean arterial blood pressure decreased from admission to discharge (153.6+/-43.8/80.6+/-21.8/102.4+/-27.3 to 132.1+/-27.9/68.9+/-14.6/89.9+/-16.5 mm Hg; P=.0222/.0139/.0329, respectively). Although all patients were volume-overloaded at admission according to BNP criteria (>500), only 42% were identified as having heart failure. BNP-directed UF is safe because it minimizes symptomatic hypotension, identifies occult congestive heart failure in a large number of patients, and significantly reduces blood pressure in addition to reducing body weight and number of medications used.
Authors:
Mihály Tapolyai; Aşkin Uysal; Gail Maeweathers; Elias Bahta; Neville R Dossabhoy
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Congestive heart failure (Greenwich, Conn.)     Volume:  15     ISSN:  1751-7133     ISO Abbreviation:  Congest Heart Fail     Publication Date:    2009 May-Jun
Date Detail:
Created Date:  2009-06-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9714174     Medline TA:  Congest Heart Fail     Country:  United States    
Other Details:
Languages:  eng     Pagination:  131-5     Citation Subset:  IM    
Affiliation:
Division of Nephrology and Hypertension, Department of Medicine, Louisiana State University Health Sciences Center, 501 Kings Highway, Shreveport, LA, USA. mtapolyai@aol.com
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